Centrifugal, turbine, or similar pump.



F.-- RAY.V cENTBjFuAL TURBINEOR SIMILAR PUMP. Y

*I APPLlCATiON FILED `SEIT. 24. `i912.:v 1,172,555;

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Pumps UNITED sTATns PATENT onnron.

FREDERICK-BAY, O' SHORT HILLS, NEW JERSEY, ASSIGNOR TO ALBERGER PUMPANDCONDENSER COMPANY, OF'NEW YORK, N. Y., A CORPORATION OF NEW YORK.

CENTRIFUGAL, TURABINE, OR SIMILAR PUMP.

To all whom it may concern Be it known that I, FREDERron RAY, a citi'zen of the United States, residing at Short Hills, in. the county -ofEssex .and State of New Jersey, have invented certain new and usefulImprovements. in Centrifugal, Tur# or Similar Pumps, of which thefollowing isa specification, referencebeing had therein to theaccompanying drawing.

My present invention relates to improve.- ments in centrifugal, turbineor similar and more particularly to that class of such pumps wherein theair and produce-a vacuum, and where a rotary impeller is employed inlcombination with an inlet for air, gas or vapor, and inlet for water orother liquid, all arranged so that the channels between the vanes-orblades of the impeller will each receive air` and water alternately, sothat in each of said channels therewill be a .succession of air pistonsand water pistons that will be driven by centrifugal force outwardlyinto the casing of the pump where the discharge will be made to theatmosphere against atmospheric or higher pressure.

The object of the invention is to increase the range of the practicalapplication of centrifugal, turbine or similar pumps of the particularclass just mentioned; and it consists essentially in a centrifugalturbine. or

Y similarn pump having an impellerx'or immultiple arrangement or aplurality of fluid 40 Snels, and whereby the water is caused toexpellers provided with a multiple arrangement or--a plurality ofseries' of vanes or blades, in each of whose channels there is asuccession of air and water pistons, a'nd a injecting nozzles fordeliveringquantities or plugs of water to the several impeller chanposea greater surface to the air so as to cause a commingling or mixingofthe air and water to a certain extent in addition to the formation ofthe succession of water and air plugs; and it also embraces acentrifugal, turbine or similar pump for pumping water in a continuousstreaml into the said fluidinjecting nozzles, together with inlet meansfor the air, so that air plugs will enter the impellerchannels betweenthe injected water plugs; and the invention also comprises numerousdetails andi peculiarities in theA Specification of Letters Patent.

object is topump anV Patented Feb. 22, 191e.

Application led September 24, 1912. a Serial No. 722,007.

construction, arrangement and combination of the various parts,substantially as will be `hereinafter described and claimed.

l In the accompanying drawing illustrating my inventiont-Figure 1 is alongitudinal sectlon of my improved centrifugal, turbine or similarpump. Fig. 2 is a partial or broken plan view of the same with the airinlet shown in section. Fig. 3 is a cross section of one series ofimpeller vanes or blades'. and one series ofv water injecting nozzlesalined with said vanes or blades.

Similar characters of reference designate corresponding parts throughoutthe dierent figuresof the drawing.

'l denotes the main caslng of a centrifugal,

lturbineror similar pump, the same being of the usual form and provided.with a disy chargepassage 2 having an exit to the atmosphere at 3,through which a mixture of air and water from the interior ofthe pumpfinds passage to the atmosphere against atmospheric or higher pressure.In the casing-1 isan impeller 4:- of the closed type having a hub 5which isirmly secured tothe main engine shaft 6. The impeller 4: isprovided with ajmultiple arrangement of series of Vanes or blades 7,between'which vanes or blades are the curved passages 8. There mayobviously be any number of these series of`vanes or blades. ample ofmechanism shown in the drawing I have indicated three such series, andit will be'observed that the inner ends of the channels 8 of each seriesopen into the interior of a sleeve or cylinder 9 which carries the hub5, while the outer end of each channel 8 in each one of the series ofchannels discharges directly into'the discharge passage 2. I

Within the sleeve or cylinder 9 ofthe impeller. 4 is a stationarycylinder or barrel 13 surrounding shaft 6 which rotates within it. Thisbarrel 13 is provided with a series of openings in which are fittedshort cylinders or tubes 12 that serve as nozzles and that lie in thesame plane as the inner ends of the impeller channels 8. In the exampleof mechanism herein portrayed I have illustrated three series of nozzles12 lying in three parallel vertical planes and situated.`

In the particular ex-v gli on the main pump shaft 6, which impeller`discharges into the curved passages 17 and then through the passagesbetween the vanes or blades 18 to the interior of the barrel or cylinder13, whence the water passes, as already stated, through the nozzles 12.As the latter nozzles are stationary while the impeller 4c is rotatingit will be obvious that the water will be caught by and projected intothe channels S whenever said channels 8 pass the open ends of saidnozzles 12, and

thus there will be a succession of water-plugs or pistons delivered intosaid channels. The provision of a multiplicity of nozzles arranged inseveral series has the' effect of eX- posing a large surface of water tothe air to absorb the same in consequence of the injector-like action ofthe nozzles.

The air which is to be pumped enters the pump through the air inlet 11,coming from any point from which it is desired to draw air, and fillsthe interior of the chamber 19 and also the interior of the sleeve orcylinder 9 of the impeller 4, and thus fills the space around thenozzle-carrying barrel 13 and around the nozzles 12 so that it canreadily pass into the interior of the channels 8through the inner openends of said channels. The air will find its way into the channels 8whenever water is not entering said channels, and, therefore, since thedelivery of the water to the channels is broken or interrupted whenevera blade 7 passes the open end of one of the nozzles 12 the air will atthis moment have an opportunity to enter the channel, therefore eachchannell will be alternately ente-red by water and air, the water beinginjected by the pumping pressure from the centrifugal .pump into thepassages in such a way as to form 'successive moving plugs of fluid orliquid pistons between which are caught certain quantities of air in themanner explained, and thus there are air pistons between the waterplugs. It

. will be obvious moreover with respect to the way in which the air ndsits way into the interior of the device that the outwardly moving waterplugs vcreate a reduced pres sure within the chamber 19 into which airis forced by atmospheric pressure.

The main pump shaft 6 is supported in suitable bearingsl 24 of anypreferred cona multiple arrangement of outlets arranged in parallelstruction. On the shaft 10 for the application of a belting to drive thepump, The impelle'r 4 is kept air tight preferably by means of waterseals 23 which receive water from any suitable source and deliver it topoints on opposite sides of the groups of impeller vanes and A`aroundthe central sleeve or cylinder 9 as shown in lFig. 1. Further the shaft6 has stuiiing boxes 2O and 21 of any desired or preferred form, eachbeing provided with a water seal In the operation of my improved pumpthe multiple arrangement of nozzles in several series'operating with aninjector-like action serves to oifer a large surface of water 6 is thebelt pulley to the air, and draws the air in and mixes it with thewater; so that not only are there formed water plugs and air plugsalternately in the several channels, but also there is this additionalmixing of the air with the water, and thus the air is effectively pumpedand a vacuum produced.

So far as the structural details are concerned, it is obvious that theymay vary'1l i widely, and I reserve the liberty of making such changesmaybe found necessary or desirable in order to promote the best results.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent, is :H

in the exact construction as 1.`I`n a centrifugal, turbine orsimilarpump, the combination of a main casing having a single dischargepassage a rotary impeller having a plurality of radial series ofchannels, a stationary water passage hav ing a plurality of radialseries of outlets arranged in parallel vertical planes corresponding inAnumber with and situated opposite to the inner ends of the said seriesof channels, which water outlets inject the water into the inner ends ofthe channels intermittently, nism for drawingwater from a suction anddelivering it into the water passage whence it emerges through theseries of means including `a sleeve attached to the ro tary impeller andan air chamber in` commu nication with said sleeve for allowing air toenter the inner ends of the series of channels alternately with theadmission of water plugs, whereby each channel is filled with lasuccession of lwater plugs and alternate quantities of air.

2.' In a centrifugal or like pump, the combination of a main casinghaving a single discharge passage a rotary impeller, having series ofradial channels, a stationary water supply having a multiple arrangementof series of radial vertical planes outlets, and.-

ios.

corresponding in number with and situated opposite to the series ofimpeller channels, said outlets delivering water with an injector-lilreaction into the inner ends of the surface to the air for the purpose ofdrawlng in the air and mixing it with'the water, and means including asleeve attached to the rotary impeller and an air chamber 1noommunication with said sleeve for allowing air' to enter the inner endsof the channels of the impeller between the water plugs which are formedin said channels, whereby each lo channel is filled with a succession ofwater and air pistons, together with centrifugal pumping mechanism `fordrawing water from a suction and delivering 1t into the stationary waterpassage.

In testimony whereof I afiix my signature 15` in the presence of twowitnesses.

FREDERICK RAY. Witnesses:

JEANNETTE STORK, L. S. PURINE.

